/Engine/Plugins/Runtime/ModelViewViewModel/Source/ModelViewViewModel/Public/MVVMSubsystem.h
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Viewmodel") bool DoesWidgetTreeContainedWidget ( const [UWidgetTree](API\Runtime\UMG\Blueprint\UWidgetTree) * WidgetTree, const [UWidget](API\Runtime\UMG\Components\UWidget) * ViewWidget ) const